Don't update the software. Nothing good ever comes from it.
The application you're launching is actually pokerstarsupdate.exe but in the pokerstars folder there is also a pokerstars.exe which doesn't automatically update.
I reverted to an older version about about 6 months ago after an update ****ed up the classic theme and haven't updated since. Everything is going very well and I couldn't be more happy.
By the way... My star coins are still tradable for cash